GroupM predicts that global ad spend will top $547 billion next year, up from $524 billion this year. While television will still capture the biggest share of that 12-figure pie (41%), digital's share will grow from 31% to 33%.

Emotion can be very powerful when trying to reach an audience, and it can be boosted by linking it with the way memory affects human behaviour. How can all of this apply to the demanding mobile audience?